tailieunhanh - Lecture E-commerce and e-business for managers - Chapter 5: Internet hardware, software and communications

Chapter 5 provides knowledge of internet hardware, software and communications. This chapter includes contents: Structure of the internet, servers, communications media, storage area networks (SANs), digital subscriber lines (DSL), broadband, integrated services digital network (ISDN),. | Chapter 5, Internet Hardware, Software and Communications Outline Introduction Structure of the Internet Hardware Servers Communications Media Storage Area Networks (SANs) Connecting to the Internet Digital Subscriber Lines (DSL) Broadband Integrated Services Digital Network (ISDN) T-1 and T-3 Lines Internet2 Software Application Service Providers (ASPs) Databases Chapter 5, Internet Hardware, Software and Communications Outline Operating Systems UNIX Microsoft Windows Linux Mac OS X Enhancing Business Communication Intranets and Extranets Streaming Audio and Video Internet Telephony Web Casting and Webconferencing Introduction Connection media Cost of connecting Streaming media (audio and video) Internet telephony Technologies used to enhance online business communications Structure of the Internet IP address (Internet Protocol) Computers use IP addresses to locate other computers on the Internet Packet Source address, a destination address, sequencing information, error-control information and the data to be delivered to the destination address Router Used to move packets across the Internet efficiently Hardware The Internet employs many advanced hardware technologies Various communications media used to connect hosts The roles hosts play on the Internet Servers Communications Media Storage Area Networks (SAN) Servers Server A host on the Internet that manages network resources and fulfills requests from clients Web servers, e-mail servers, database servers and file servers A single server may provide multiple services A Web server stores Web pages and delivers the pages to clients upon request Protocols for delivering information over the Web Hypertext transfer protocol (HTTP) File transfer protocol (FTP) Post office protocol (POP) Simple mail transfer protocol (SMTP) Communications Media | Chapter 5, Internet Hardware, Software and Communications Outline Introduction Structure of the Internet Hardware Servers Communications Media Storage Area Networks (SANs) Connecting to the Internet Digital Subscriber Lines (DSL) Broadband Integrated Services Digital Network (ISDN) T-1 and T-3 Lines Internet2 Software Application Service Providers (ASPs) Databases Chapter 5, Internet Hardware, Software and Communications Outline Operating Systems UNIX Microsoft Windows Linux Mac OS X Enhancing Business Communication Intranets and Extranets Streaming Audio and Video Internet Telephony Web Casting and Webconferencing Introduction Connection media Cost of connecting Streaming media (audio and video) Internet telephony Technologies used to enhance online business communications Structure of the Internet IP address (Internet .